How to change result of crafting with two villager slabs. Use MOD configuration screen(IT'S EASY! KEEP MINECRAFT RUNNING!) or change B:RecipeVillagerSlabsIsRecovery in configuration file.(Need restart Minecraft, or only in server) If B:RecipeVillagerSlabsIsRecovery is false, result is vacant villager block. Otherwise, result is villager block. This option is applied from server if you playing in SMP.